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I just installed Linux Mint 5 on three of my systems.For some reason I cannot run the update tool....open lock icon....says I have 151 updates available or the package manager. When I click on it...it tries to open....but then nothing happens. Same happens with the package manager. It says "starting administration....." then nothing.

Do I need to configure something in this distro to enable updates and software installation?This is happening on all my systems.

Seems there is an error with gksu - but it's odd that you get it on three systems. Are they very similar?Try to open something else that is using gksu, like "contol center > Hardware drivers"If this also stops at starting administration then your system is corrupt and I recommend a reinstallThis may seem a strange question but is not - did you check the md5sum of the iso (and burned slowly)?The CD may be erroneous even if you managed to install